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Exposure to five electric foot shocks in the absence of a social stimulus does not induce social fear. Investigation of non-social (empty cages; ns1–ns3) and social (cages with mice; s1–s6) stimuli by non-shocked and shocked mice (n=8 per group) during extinction 1 day after foot-shock exposure (3-min exposure to stimulus, 3-min inter-exposure interval). Data represent mean percentage of investigation time±SEM.
